public function testTrancheInterestRate()
{
$loan = new Loan();
$loan->setStartDate(new \DateTime("2015-10-01"));
$loan->setEndDate(new \DateTime("2015-10-31"));
$percentage = 6;
$tranche = new Tranche();
$tranche->setLoan($loan);
$tranche->setInterest(new Interest($percentage));
$tranche->setMaxAmount(1000);
$interest = $tranche->getInterest();
$this->assertInstanceOf('LendInvest\\Model\\Interest', $interest);
$this->assertEquals($percentage, $interest->getPercentage());
$this->assertEquals(0.19, $tranche->getDailyInterestRate());
}